Canon/Zeiss Glass
2005-08-24 by claudej1@aol.com
In a message dated 8/24/2005 11:58:49 AM Pacific Daylight Time, DigitalBlackandWhiteThePrint@yahoogroups.com writes: I am, though, very surprised by your comment re Canon glass. I only have two Canon lenses: the 28-70 f2.8L and the 70-200 f2.8L. Admittedly the Canon glass I have is one generation old - the first replaced by the 24-70 f2.8L and the second by an IS version - but neither of these comes close to my Contax Zeiss 80mm planar or 120 Makro-Planar. I have used the Phase One backs (up to the P25) in a studio, handheld, with the Contax 645/80 Planar. They beat the 1ds2 for sharpness and detail any day. I am even more surprised by the double standard in your comparison. You are comparing old zooms to fixed focal lenghts. Even the new zooms woudn't hold up to the Contax Planars. You can't compare zooms to fixed lenses and call it fair. Let's try a $1,600 L series 85mm f/1.2 at f/4 vs. the 120 Planar at f/8 which for the format differential would be about the same DOF. All Canon has to do is make a chip that would "use up" that extra resolution and MTF and put the 50mm f/1.4 Canon (non-L) against the 80 Planar. Since the lens formulas are similar in all cases the smaller image circles of the canons would make them at least 25-50% sharper, all other things being equal in optical design.....all for 1/2 to 1/4 the price depending on which repsective lenses you compare. Also, the P25 doesn't use an Anti Aliasing filter, which give it a sharpness advantage and a moire/color aliasing disadvantage. I shot the original Phase One lightphase against the Foveon in 1999, and the Foveon equaled the Phase One sharpness (after USM), had better color, no moire and no aliasing. I know the P-25 is one of the top dogs out there and in the right application, for the right client, it's the better choice. My point was about 80% of the performance for 1/3 the system price with a whole lot more choices in glass than a few single focal lengths from a defunct camera company. A few years back, I tested the full frame Contax N Digital camera with the superb 85mm f/1.4 Planar which is every bit the lens the the Canon L is. It was too few pixels, and 2 years too late to market. Nice try, but no cigar. If they had gone to the 11 Megapixel Dalsa Chip they might still be here. Now they are a memory unless some other Chinese company picks them up, mostly for name, like Hasselblad. Unless MF back and camera makers start thinking in terms of 40-50 Megapixels with those big chips, Canon will eat their lunch within a few years because for some things, it's plain and simply "good enough." In my markets, I would lose money with an H25, but it's a great setup if you can afford it, great color, mature workflow, etc., so I'm not slamming it. Just telling it like I see it. Claude [Non-text portions of this message have been removed]